Can-closure machine



April 13, 1926.

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C. NEUBERT. JR'

CAN CLOSURE MACHTNE Filed Feb; Q,

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Patented Apr. 13, 1926.

UNITED `:antennes NEIIBERT, JR, 0F BALTIMORE, tramitan-n.v

@Airfot'svnmraonma i Appllicarionffuea February alam. Aserial No.*es1,72 s.

To @ZZ whom t may concern: Y

-Be vit known that LQOHARLES NEUBERT,

Jr., a citizen of the United States, residing atrBaltimore, in the State of the YMaryland, have invented certain new and .useful Improvements in Gau-Closure Maohnos; and I .do hereby `.declaro the following to bel alfull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. ,e j Y f My invention relates to can closure mafr chines.

Among the objects of my invontionaro1- To produce a machine for pressing `a closure in a can. Y 1

To produce a machine for vSecuring a closure within a can in Asuch a manner that theclosurc is secured against 'inadvertent displacement during transportation, but yet can be removedlfrom the can by the ulti-v mate consumer` and again replaced therein, if desired.

To produce Va v securing a closure within a. can -inl the fore-l going manner. A e

These and further objects of my invention will be set forth in the following speci'- cation, reference being had to theaccompanying drawings, and the Vnovel means by which said objects are effectuated wi'llbe definitely pointed out in the claims.

Figure 1 is aside elevation of my improved machine, partly in .sect-ion, showing a can in position to receive its'closureff Fig. 2 isa view of a portionof'my im- Alooking in the'direction of proved machine the arrow 2 in Fig. 1.

Fig. 3 is asectionalong the line 3-3 in Fig'. 2A looking in the direction of the'arrows,'but showing a closure applying andrsecuringmechanism in cont-act with the top Vofacain. y f r "f' Fig. 11 is a section along-the line 4-'4 in Fig. 3 looking in the direction of the arrows. Fig. 5 is a section of certain part-s 'to which reference ishereinafter made.l

In the drawings f 10 represents a can table supported'in any approved manner by any desired number of legs such as 11 and having-secured toits upper surface a guide rail 12 for positioning a .canlfj with reference to the closure applying'- and vsecuring mechaapproved" hole at the upper end of the machine for pressing and y cal portion v32 i nism hereinafter described. ylylounteol inany mannery lbeneatlrsaid table is aA all-y secureda bracket 1li-to which is pivot foot lever 15. A footpla-tel 16 ismounted on one end vofsaid lever and at its opposite end a weight 17 is secured for a *purposeV hereinafter' eigplained.

l5. adjacent vthe Vweight 17 and yextends upwardly vthrough a tube 19, Ythe lower end of which is mounted within the bracket 111; Said Atube extends upwardly through a `hole 20 provided in the table 10 and lhasf mounted on its upper/end the-bracket 2 1; v A lever 22 is' pivotally mounted on the bracket 2 1' and one Y end of vsaid lever registere with the tube 19 andlis pivotally Secured to theupperfend of the rod 18 which vpasses therethrough. vThe other end of thev lever 22 is pivot-allyl secured to a link A rod 18 is pivotally secured to thelever '23, the oppoeite end of which is pivotal'lyvv vsecuredto a tube- 24; Saidtube `passes, through abra'cket 25 which is slidablymounted on thetube 19, the tube 24 being locked with reference to the bracket 25 by setl screws -sucjh-as26. "The bracket 21 also serves-as a stop .forfthe bracket 25. y

' The tube/,2,4 extends downwardly yand has mounted.onkitslow'er end -a vflanged collar .27.` 27' is a casing 28 vwhich provided with an lupper cylindrical vportion 29 through whichl Restingonl the top surface' 'of the collarthe tube '24: passes and which serves as a guide for'said tube. The-casing y28 1s maintained in'positi'ojn `on thetop Surface of the collar 27 by av spring 30n which embraces the cylindrical portion 'r29wandis interposed between the lower side of the bracketf2' and a boss 3.1,

formed on the leasing 2,8.

The casing 28 1s Yprovided with a frustro- ,conical 'shaped rpoition 32 at its lower vend and a platey 33 is secu-redthereto. Thecasing 28 is further provided with ya' plurality of shoulders such as 34; and with a plu.

rality of openingse@a inthe frustro-cont` a finger 37 for a purposehereinafterV eX- explained.V

' The flange 35 of the collar 27 isprovided with a'p'lura-lityot1 pairs of ears such as L36 withtoee SSvhich normally 'resten the top each'of which registers .with

llt

surface of the plate 33 by reason of the fact that the pivoted ends of the fingers 37 are above said surface, as shown in Fig. 3.

My improved machine is constructed with especial reference to placing a closure in a can constructed as shown in Fig 5, wherein 39 represents the body of a can provided with a top 4t() having an inwardly disposed flange fil, said fiange being circular in the can shown in the drawings, but it is obvious that the flangelil may be of any desired shape.

Lt2 is a closure having a collar i3 lwhich fits closely within the flange 4l.

The operation of my improved machine is as follows:

The operator places a can 13 on the table l0 and said can is positioned for the reception of the can closure by reason of the guide rail l2. A closure 42 is then placed on the top of said can so as to register with its opening, after which pressure is applied to the foot plate 16, and by reason of the interaction ot the intermediate parts the bracket 25 operating through the spring 30 forces the casing 28 downwardly so as to contact with the closure 4t2, thus pressing said closure into the opening of the can, the frustroconical shaped lower portion of the casing 28 assisting in centering said casing with reference to said closure.

Then the closure has been fully entered into the can, the under surfaces of the shoulders 34- contact with the crimped edge 13L of the can 13, preventing further downward displacement of the casing 28. However, the bracket 25 may still move by reason of its resilient connection with the casing 28 and, therefore, the tube 24: which is locked .with reference to the bracket 25 will move also. Hence, the pivoted ends of the fingers 3 will move vertically downwardly, thus pressing the toes of said fingers outwardly through the openings 3 to contact with the collar i3 of the closure i2, as shown in F ig. 5.

The pressure of the toes 38 against the collar, t3 will form a series of projections such as est thereon as shown in F ig. 5. j

,lilhen the operator releases the pressure on the plate 16, the spring 30 will raise the bracket 25 upwardly, thus withdrawing the toes 38 from contact with the closure 4-2 after which the weight 17 operating through the intermediate parts will withdraw the casing 28 from within said closure.

lt is obvious that the projections Lillwill resist the removal of the closure 42but that by reason of the inclined upper surface of said projections when the requisite force is applied to the flange of the closure, the upper surfaces of the project-ions 44: will force the abutting' portion of the flange il outwardly sufiiciently to prevent the removal from the closure 42. When the closure ft2 is again placed within the flange,

a nose i6 at the bottom thereof forces the adjacent portion of the flange Lil outwardly to permit the introduction of the closure 42.

lt is to be noted that my machine may be used solely for the purpose of placing tops within cans merely by removing the fingers 37, or the tops may be placed therein by ha d and my machine used merely for the purpose of securing said tops within said cans, or it may be used for a combination of these two functions.

I have shown my improved machine as applied to a cylindrical can provided with a closure having a cylindrical body portion, but it is obvious that machines may be con structcd according to my invention suitable for cans and closures of various shapes.

l have shown one preferred form of my invention, but it is to be understood that the disclosureis for the purpose of illustration only and inv nowise to limit my invention to the exact elements and combinations thereof shown, for many changes may be made in the same without departing from the spirit of my invention.

I claim H l. In a machine for securing closures in cans, the combination with a casing provided with a portion adapted to lit within said closure, of a collar slidably mounted in said casing and lingers movably mounted on said collar adapted to move outwardly to form projections on said closure during the sliding movement of said collar.

2. InY a machine for securing closures in cans, the combination with a casing provided with a portion adapted to fit within said closure, of means slidably mounted in said casing, fingers pivotally secured at one end to said means Vand provided with toes at the opposite ends, and means for moving said slidably mounted means with reference to said casing, whereby said toes move outwardly to form projections on said closure for coacting with a portion of said can.

3. ln a machine for securing closures in cans, the combination with a casing provided with a portion adapted to within said closure, of a tube slidably mounted in said casing, acollar secured to one end of said tube, fingers pivot'ally secured at one end to said collar and provided with toes at their opposite ends, an arm secured to the other end .of said tube, a spring interposed between said casing and arm, and means for moving said arm against the resistance of said spring when said casing is resting upon said can, whereby said toes are ,pressed against said closure to form vprojections thereon for coacting with a portion of said can.

et. .ln a machine for securing closures in cans, the combination with a. casing provided with a portion adapted to fit within .aid closure, of a collar slidably mounted in said casing and fingers, pivotally secured to said colla-r, adapted to move outwardly to form projections on seid closure, said fingers being` guided by said casing during said movement.

5. In a machine for securing closures in cans the combination with a casing provided with a, 'portion adaptedy to it within said closure, of av collar slidebly mounted iny said casing, fingers pivotaliy secured to said 10 In 'testimony whereof I afiix my signa- 15 vture. f

CHARLES NEUBERT, lJR. 

